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'01 RX300 Exhaust Leak [pic]

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Old 07-28-13, 11:54 AM   #16
hypervish
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There is part of the bolt, left but it's the part that rests on the flange.

I've attached a few photo's to give you an idea of the broken bolt, the replacement Toyota genuine bolt, and for anyone else who encounters this and needs a new nut the size you will need is M10-1.25.







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Old 07-28-13, 02:06 PM   #17
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If I cant get two nuts going then I would use tool similar to this



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Old 07-28-13, 02:27 PM   #18
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I'll order that tool for the future, in case I run across something like this.

I'm planning on driving it over to my uncle's shop tomorrow, it's a bit far about an hour's drive. (which is why I attempted to do myself first, and it's always fun learning something new)

I'm assuming it's safe to drive it like this, since there is still one bolt holding it together?

Thanks Salim!
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Old 07-29-13, 03:59 PM   #19
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My uncle used a plasma cutter and just cut off the old nut and part of the flange around it.

Nice and quiet now after replacing the gasket!
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Old 08-07-14, 10:05 PM   #20
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Perhaps this question will answer itself after removing the gasket, but which direction should the flat part if the gasket face, towards the front or rear?
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Old 08-11-14, 03:32 AM   #21
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Originally Posted by Builder3 View Post
Perhaps this question will answer itself after removing the gasket, but which direction should the flat part if the gasket face, towards the front or rear?
The gasket above looked like a donut type of gasket in which case, gets oriented only one way.
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Old 08-11-14, 07:17 AM   #22
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I've found that the fire breathing wrench [torch] works every time. If you heat around the nut to expand it, you'll probably be able to turn the broken bolt out if you can get a good enough grip on it with vise grips or small pipe wrench. Heating also helps the oil penetrate deeper but be careful because it's flammable. Use a rag or paper towel to contain overspray and try to keep the spray on the threads as that's the only place that it's doing any good - the rest is just a fire hazard. Obviously, keep an extinguisher handy. I've found a torch to be a necessary tool for exhaust work esp. if you live where they salt the roads in winter. If you look at the pics of the bolts in question, you'll see quite a bit of threaded area beyond the nut that is so corroded the threads are hardly recognizable and unlikely to ever pass through the nut in order to remove the bolt. I added extra nuts to cover and protect those threads on the new bolts. Seems like a good place for stainless steel fasteners.
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Old 08-11-14, 12:23 PM   #23
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Originally Posted by Rudy602 View Post
I've found that the fire breathing wrench [torch] works every time. If you heat around the nut to expand it, you'll probably be able to turn the broken bolt out if you can get a good enough grip on it with vise grips or small pipe wrench. Heating also helps the oil penetrate deeper but be careful because it's flammable. Use a rag or paper towel to contain overspray and try to keep the spray on the threads as that's the only place that it's doing any good - the rest is just a fire hazard. Obviously, keep an extinguisher handy. I've found a torch to be a necessary tool for exhaust work esp. if you live where they salt the roads in winter. If you look at the pics of the bolts in question, you'll see quite a bit of threaded area beyond the nut that is so corroded the threads are hardly recognizable and unlikely to ever pass through the nut in order to remove the bolt. I added extra nuts to cover and protect those threads on the new bolts. Seems like a good place for stainless steel fasteners.
Liquid Wrench isn't flammable. Works well if you have a torch handy.
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Old 08-18-14, 09:18 AM   #24
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PB Blaster has a "high flashpoint" but will burn. I'll have to try the liquid wrench. Thanks.
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Old 08-26-14, 07:05 PM   #25
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How do you check that there is a leak on that gasket ?
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Old 08-26-14, 07:36 PM   #26
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you can feel the exhaust leak.

To aggravate the situation, you can take a rag and momentarily choke the exit. Dont over do it as it can foul the plug.

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Old 08-26-14, 07:36 PM
 
 
 
 
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clublexus, exhaust, exhuast, find, flange, gasket, installing, leak, leakage, leaking, leaks, lexus, muffler, replacing, rx300

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